model 2704 controller installation and operation handbook - Soliton
model 2704 controller installation and operation handbook - Soliton
model 2704 controller installation and operation handbook - Soliton
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<strong>2704</strong> Controller Loop Set Up<br />
9.7. CONTROL OF VALVE POSITIONING MOTORS<br />
The <strong>2704</strong> <strong>controller</strong> can be configured for motorised valve control as an alternative to the<br />
st<strong>and</strong>ard PID control algorithm. This algorithm is designed specifically for positioning<br />
motorised valves <strong>and</strong> operates in boundless mode, which does not require a position feedback<br />
potentiometer for control purposes<br />
An example on how to connect a motorised valve <strong>controller</strong> is given in Chapter 2 section<br />
2.4.2. The control is performed by delivering open, or close, pulses in response to the control<br />
dem<strong>and</strong> signal via raise <strong>and</strong> lower relay or triac outputs.<br />
The following page will appear if your <strong>controller</strong> is configured for motorised valve control.<br />
9.7.1. Motor Parameters<br />
Table Number:<br />
9.7.1.<br />
Parameter<br />
Name<br />
Travel Time<br />
Inertia<br />
Backlash<br />
Min Pulse Time<br />
This list allows you to set up the motor interface<br />
parameters for a valve positioning output. This<br />
page only appears if a motor valve positioning<br />
LP1 SETUP<br />
(Motor Page)<br />
<strong>controller</strong> is configured<br />
Parameter Description Value Default Access<br />
Level<br />
This parameter is set to 0:00:00.1 0:00:60:0 L3<br />
match the time taken for the<br />
motor to travel from fully<br />
closed to fully open<br />
This parameter is set to<br />
match the inertia (if any) of<br />
the motor<br />
This parameter compensates<br />
for any backlash which may<br />
exist in the linkages<br />
Sets the minimum on time of<br />
the signal which drives the<br />
motor<br />
Off to<br />
0:00:00.1<br />
Off to<br />
0:00:00.1<br />
Auto to<br />
0:00:00.1<br />
0:00:20:0 L3<br />
0:00:20:0 L3<br />
Auto =<br />
0:00:00:2<br />
VP Pot Lo Lim Valve position low limit 0 to Pot Hi L3<br />
VP Pot Hi Lim Valve position high limit 0 to Pot Lo L3<br />
VP SBrk OP<br />
VP SBrk Action<br />
Valve Position<br />
Sensor break action for<br />
bounded control<br />
Sets the sensor break action<br />
for a valve position <strong>controller</strong><br />
when no feedback<br />
potentiometer is used.<br />
Indicates the position of the<br />
valve<br />
L3<br />
0 to 100% L3<br />
Reset<br />
Up<br />
Down<br />
L3<br />
0 to 100% R/O<br />
Enable Pot Cal Pot input calibration enable Off On L3<br />
Installation <strong>and</strong> Operation H<strong>and</strong>book. Part No HA026502 Issue 1.0 Apr-00 9-15
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